Great addition to a fantastic tool. Your commitment to soaring inspired me to sign up to Premium.
In theory "cloud base", "cloud tops", "height of thermals" and the map of blue/Cu/OD areas already cover the essentials perfectly.
But the problem is the accuracy. Sometimes the "height of thermals" is below the "cloud base", sometimes it is higher than the "cloud tops"! And then the soundings often appear to be different again.
It would be useful to have more info on what "height of thermals" is supposed to signify. Is it the tops of thermals (TI=0 / PBL height etc), top of useable lift (HCrit etc), or some kind of custom parameter similar to a "star rating" / "PFD"?
I've tried most of the soaring forecasts and still use some. For the UK, the specialist forecasts are often no more accurate than looking carefully at the general weather forecasts and observations and doing a simple estimation of cloudbase from the temp/dew point spread.
So my hope would be improved accuracy of what already exists, rather than more and more different ways to view inaccurate data.
All GFS 0.25° grib files provided by NCEP/NOAA after this upgrade do contain announced changes. I don't know if Windy downloads grids of all available parameters/levels: data is huge (>0.5 GB for each forecast), while downloaded grids may be filtered by both coverage, forecast, parameter and level.
Obviously not all available parameters and levels are available via Windy UI.
Anyway, introducing all parameters and levels on UI would be useless for most of the Windy users (e.g. some parameters are available for levels 0.1 hPa, 0.2 hPa, etc.); they would be only useful for research purpose.